HK

Hiromichi Koyama

Sumitomo Electric Industries: 10 patents #2,734 of 21,551Top 15%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
📍 Kasai, JP: #664 of 5,842 inventorsTop 15%
Overall (All Time): #387,559 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
7350285 Method of manufacturing a switch panel to be disposed close to a magnetic sensor Hideki Mitsuoka 2008-04-01
7329823 Movable contact element and panel switch formed using the same Akira Sadamori 2008-02-12
7196282 Movable contact unit arrangement including a movable contact unit and a magnetic sensor Hideki Mitsuoka 2007-03-27
7186939 Movable contact unit and panel switch Naoki Sera 2007-03-06
7178223 Method of manufacturing a movable contact unit to be disposed close to a magnetic sensor Hideki Mitsuoka 2007-02-20
6906275 Movable contact unit, panel switch using the same and electronic equipment having the panel switch Koji Sako 2005-06-14
6634090 Method of production of series of a tactile contact units and tactile contact unit, and series of tactile contact units and a tactile contact unit produced by using the same method Toyoshi Fukumura 2003-10-21
6608273 Push switch Hisashi Watanabe, Koji Sako 2003-08-19
6333477 Switch having improved contact performance Koji Sako 2001-12-25
5845766 Movable contact element for panel switch and method of manufacturing panel switch with movable contact element Koji Sako 1998-12-08
4797119 Insulation displacement connection (IDC) type cable connector and a method for assembling a cable thereto Hideo Miyazawa, Ikuhiro Andoh, Mitsuru Kobayashi 1989-01-10
4714306 Insulation displacement connection (IDC) type cable connector and a method for assembling a cable thereto Hideo Miyazawa, Ikuhiro Andoh, Mitsuru Kobayashi 1987-12-22
4541847 Air-purifying apparatus Naoyuki Oie, Takafumi Takegawa 1985-09-17